Improvement in harrows



N. MCGUEN.

Harrow.

.Patented Feb. 2551862;

f77/057,8 was.'

' than the rest.

UNTTED STATES PATENT OFFICE.

NELSON MCOUEN, OF SOUTH POTSDAM, NEW YORK.

IMPROVEMENT IN HARRows.

Specification forming part of Letters Patent No. 34,516, dated February25, 1862.

To all whom it may concern:

Be it knonn that I, NELSON MGOUEN, of South Potsdam, inthe countyot' St.Lawrence and State of New York, have invented a new and ImprovedSelf-Adjusting Drag; andI do hereby declare the following to he afull,clear, and exact description of the same, reference being had tothe accompanying drawings, making a part of this specification, inwhich- Figure 1 is a plan or top view ot' my invention. Fig. 2 is alongitudinal section of the saine, taken at the line a: @c of Fig. 1.

Similar letters` ot' reference indicate corresponding parts in the twofigures.

The object ot' this invention is to obtain an implement which will openup the soil and work the ground into a perfect tilth by being passedover it simply once.

To enable others skilled in the art to fully understand and construct myinvention, I-will proceed to describe it.

The frames A B, to which the teeth are secured, consist of a series ofbars, a, which are secured together at the proper and equal distancesapart by the cross-ties B. The hars a are bent so as to form obtuseangles, as plainly shown in Fig. l in thedrawings, and the teeth b aresecured to the frames by means of nuts, c, which at the same time fastenthe cross-ties B down on the bars a. The cross-ties at the ends of theframes may be wider and stronger Each of the frames of the implementarestrengthened hy a diagonal curved binder, O, which is fastened down onthe same by the nuts c, as plainly shown in Fig. l ofthe drawings. Theframes are provided with handles at their hind end, and are connected bymeans ofchains D with the beam or evener E, said chains being secured tothe cross-ties by means ot' half-ring bolts e, or in any other suitablemanner. The beam E rests on rollers j', which are adjustable in avertical direction by means of set-screw s g, so that the height of theevener E can be regulated according to the nature of the soil, and thusthe proper line of draft between the shoulders ol the drawinganimals andthe eveuer E can always be maintained by simply changing the height ot'the wheel. The wheel also serves to support the weight of thc evener andprevents it from depressing the front end ot the drag.

F is an arm attached ateach end to the beam E. The clevis H, to whichthe draft-animals are hitched, is attached to the arm F, and can beadjusted laterally thereon by means of the holes h in the middle of thebar, so that the driver is enabled to change the angle at which the dragis drawn, so as to canse the teeth to assume asidewise position as theypassthrough the ground, whereby the teeth will act like plowshares andturn the earth over in sin-all furrows. This is especially useful inwhat is termed swari'l7-ground.

When it is desired to use either one of the frames separate for onehorse or other draftanimal the adjustable beam is taken olf and thedraft-animal hitched to the front cross-tie of the frame by means ot'the half-ring bolts.

The teeth of the implement are steel-faced, and they may be shaped insuch a manner as to be self-sharpening. The shouldersjon their upperends serve to give to the same a good hold in the frames.

The frames, being connected independently to the adjustable beam, can helifted for any purpose while the implement is in motion, and the easyand independent up-and-down movement enables them to adapt themselves tothe surface ot' the ground.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A drag having the eveuer E, supported upon adjustable'r'ollers, andhaving 'the bars a, bent at obtuse angles to the bars B, the teeth beingarranged to said bars as set forth, and the whole constructed otherwiseas herein shown and described.

NELSON MCGUEN. Witnesses:

J AMES ELLwooD, ROBERT CHAMBERS.

